Railway-car truck.



W. E. COFFIN. RAILWAY CAR TRUCK. APPLICATION FILED APR. 19, 1911, 1,049,209. Patented De0.31,1912.

Y 2 SHEETS-SHEET A.

WITNE S SES VAZ dlg/ 2 W B. COFFIN-- RAILWAY GAR TRUCK.

APPLIOATION FILED APR. 19, 1911.A

Patented .Dea 31; 191.2.

wrrNEssEs l\ .QL INVENTOR y -annum Q'WQJMM/ngv,

.'lQ THE NATIONAL MALLEABT'W CASTING-s COMPANY, or oLEvELA1\TD OHIO, s. CQRPoRATioN or OHIO.

' nauwer-CAR Timon. ieti?. Specification of Letters'ratent. Pawnee@ 396 31,1912( Application led April 19, 1911.

cateiiary'curve, the end sionl member straight lines rom the terminations ot' this Serial No. 622,065.

l'b all Iwhom vif 'may concern:

Be it known that. l, VALTER E. Cointrin, oil Cleveland, Cuyahoga county, Ohio, hai invented a neiv'and uset'ul Improvement in lfailway-Car Trucks, of which the following' is a full, olea-mand exact description, b reference being had to the accompanying i drawings, forming part of this speoiiication, in which` ,A y Figure l is a side view, partly in section? of a truck embodyintfg` my invention; Fig. Q is a plan View of a portion of the truokfalso` portions or the tenmember, however, is not my invention, but is the invention of Chester partly in section; Fig. 3 is a partial section Cleveland, Ohio. on the line .llslll of Fig. l; Fig. 4 isjan which is bounded at its' top b v the compres` inverted plan view showing the which the tie bar is secured; Fia. 5 is a per.- spectire View of one or the bolster weaning` shoes; Fig. 6 is a perspective View ot' one of the'side frame wearing shoes.`

My inif'ention has relation to railway ear trucks, and is designed to provide means ot". novel. simple, and convenient character for` permitting the ready l o'l Lne vbolster in the side frames; also to prosion member 2 and at the sides by umnsS, and at the bottom by insertion at each side of the portionv of the Window, their inner faces will be flush With the inner faces of the side walls of the narrower portion of the window. bolster Sl may extending in substantially.

widene at its upper portion sufficiently to L5 vide .means of novel character for securing e of any well known or suitable i'oi'in, and tie spring plank to the truck side fiaines is provided near each 'end with side guides and also to provide means or noi'el characl, to seat the bolster wearing shoes l2, ter 'toi securing the tension members and which are riveted or otherwise rigidly attie bars of the side frames to the compres tached to the bolster.

3@ sion member. 'In assembling the'truek, the bolster'with The nature of my invention will be best l its attached wearing shoes, is inserted laterunderstood by referenee to the accompanyally through the upper widened window. ing drawings, in which I have shown the portion ot' the cast member of the side frame, preferred embodiment thereof, and which and having been so inserted to such 'a point 3f; will now be described, it being `preniisec, that the flanges l2- of'said shoes come intov .iowever 'that various Changes may be made register with the lower portions of the colin 'the det oit construction and arrange- Y umns' 3 at the narrower part of the window, ment. or theseferal parts by those skilled in lthe bolster can be dropped down suiiiciently the art. without. departing from the spirit n ithin the window to permit the side frame'.

if and scope or my invention as detined'in the wearing shoes l0 to be inserted in 'their appended claims. seats.' After these shoes 10 have been inln these drawings,l I have shown a truck' serted-in posit-ion, the bolster is again raised haring a side frame ot mat class composed an vt e springs 7 placed b neath it. TheA` of both wrought and .cast members, the cast entire strueture is then so interlocked that i5 portion compi ising; the compression member t `ve shoes lf'nannot be withdrawn. rlille side i? having the integral columns 3 connected flanges 12a of te shoes l2 tit partially over at their'lower ends by the, portion ll, which the side edges o'. the slices l0, and the side is rounded at its under side Ato form a curved i' anges 10L1 of the shoes 10 embrace the sides bearing for the wrought tension member 5, of the columns, as clearly seen in'Fig. 2.

59 ant. which, at its upper side, forms a seat 6 he portionfe of the cast member has cast for the springs 7 which support the bolster l integral vtherewith the depending Wing or, S. VThe lower side of the portion et is roundkey portion 4a, which enters al slot 13 in the ed to a longI radius; and the central portion wrought 'tension member 5, and also la simi- 5 of the tension member which lits this roundlar slot in the tie bar lll, in order lto avoid ed portion has substantially the form or' a weakening -of the tension member 5 andi-tie apart, leaving the same in position,

bar 14 by cutting the slots for the wing or key port-ion 13 out of the solid metal, these slots are preferably formed by inserting a spreading tool or die which does not cut out the metal ot' this point but simply spreads it amount ot metal in cross section through the split portion as at the other points of these members. The wing' or key member la is formed with transverse holes tor the insertion of the key bolts 15, which may be secured by cotter pins 16, or b y other suitable means, and whereby the castcompression member ofthe side frame,

the tension member, and the tie bar, are all interlocked and are prevented from lbecoming disengaged.

The seats 6 of the compression member are each formed with a vertically extending slot or recess 17 (see Fig. 3), adapted to receive the downwardly bent end 1S of the spring plank 19. This spring plank 19 is preferably of pressed steel, dished out at lit-s middle portion, as shown at 20, with its end portions 1S bent downwardly at substantially t right angles to engage the recesses 17. So

much oi? the ioor of the seats 6 as receive the end portions of the spring plank are lower than the remaining portions of said seat by an amount equal to. the thickness of thespring plank, so that when 'the latter is placed in position, its upper surface will lie flush with` the general surface of said seat, therebyproviding a tiat bearing of the same height for the ventire group of bolster springs. After the springs have been placed the spring plank is prevented by the springs from becoming disengaged from the side frames, and thereby forms a rigid cross-connection. between the two side trames,

which cannot become disengaged therefron'i`` v as Along as the springs remain in place.

lt will be understood that some of the features of my invention are not limited to the particular ster which l have herein shown and deform ozt truck side trame 4or boln scribed, but are applicable to truck side frames and bolsters of various types.

What I claim is 1. A, truck side frame provided with a window widened at its upper portion, wearing shoes seated in the widened portion of the window, and a bolsterhaving wearing shoes secured to opposite sides thereof and adapted to bear against named wearing shoes; substantially as described.

`my hand.

2. A truck side frame having a window therein widened at its upper portion, flanged wearing shoes seated at opposite sides of the widened portion of the window, a bolster having lateral guides at its ends, and flanged wearing slices tixedly secured' in saidv 4refcesses and engaging the first named wearing sho-es substantially asdescribed.

3. A car ltruck having a compression member and a slotted tension member, the co1npression memberhaving ycolumn guides provided with a connecting portion at the bot-v tom oi' the bolster opening,

a rib depending from the connecting portion adapted for seand engage the firstv curing in a slot in the tension member, theV metal' of the tension member being of uniform cross-sectional area between its points of support. f

4. In. a car truck side frame, a compression membena slotted tension member, bolster guides formed with a connecting portion which serves asa sion member, the said connecting portion having a depending rib adapted to be secured in a slot in the tension member, the

metal of said tension member being of substantially uniform cross sectional area between its points osupport. a

Intestimony whereof, l have 'hereunto set WALTER E. COFFN.

Witnesses: v CHESTER K. BROOKS,

' HARRY E. OBR.

bearing for the ten- 

